Dynamic of Friction Coupling Independently Rotating Wheels for High Speed

Abstract

A new lateral coupling structure with independently rotating wheels (IRW) is proposed, and longitudinal creepage is obtained by replacing the gear pair with the friction pair to synchronize the rotation speed of left and right wheels. The auxiliary wheelset made up of two friction wheels can be placed either under the primary suspension or on the frame. Vehicles dynamics models with three different kinds of bogies are developed, including friction coupling bogie with independently rotating wheels (FCIRW-bogie), bogie with independently rotating wheels (IRW-bogie), and bogie with rigid wheelsets, and their guiding and resetting capability when negotiating large-radius curves are compared and analyzed. Results show that FCIRW has the advantages of both IRW and rigid wheelset. On the straight track, FCIRW has sufficient wheel-rail longitudinal creep force to assist the reset; its critical speed is much higher than that of the rigid wheelset. On the curved track, the whole vehicle wear power of FCIRW-bogie vehicle is about 2/3 of the rigid axle level.

Adhesion control strategy for trains with driven independently rotating wheels considering active guidance

“…The second one is the bogie developed for IRWs [8]. Lateral coupling IRW bogies and longitudinal coupling IRW bogies are widely applied in low-floor trams [9]. The third one is active control, that is, the train operation state information is collected by sensors and the guidance function is adopted by mechatronic devices.…”

Thermal modal analysis of novel non-pneumatic mechanical elastic wheel based on FEM and EMA

“…The increased temperature may induce thermal stress and thermal deformation, resulting in the significant changes in the shape, structural strength and stiffness of tire and consequently leading to deteriorated dynamic characteristic. 8 Thus, it is imperative to investigate the effect of thermal conditions on the vibration performance of MEWheel and consequently avoiding tire temperature related vibration failure, improving the ME-Wheel reliability.…”